[Es2] stock AAN with Dahlback intake vs. chipped 3B
bklumper at mdbworld.com
Fri Aug 13 17:17:31 EDT 2004
Last night we had a little get together of local Audis. A friend of mine was there with his AAN converted coupe and I of course had my 3B coupe there. The only mod he has done is the Dahlback intake manifold adn a cone filter. ECU is stock. My 3B is stock but my ECU has been upgraded with a 2.5 bar pressure tranducer and Mihnea's software. Yet my friend's car pulls waaaaaay harder than mine, and he doesn't even have 3rd gear! There's no lag either. It spools up very quickly to 15psi and stays there though the rev range, whereas mine takes quite a while to build. Mine eventually gets to about 19-21 psi but there's never a steady plateau of boost. Before 3000 rpms, it feels like the old 7A! I can say that now that I've driven the car for a couple of weeks and have come down from the initial excitement I'm a little concerned about the lack of performance. Would the Dahlback intake make that much difference on a stock motor? The power in his car is incredible!
The one thing I always wonder about is that when I had everything apart, I found that there was no play in any direction on the turbo shaft, but the turbo didn't spin all that freely by hand. It would turn without resistance, but it wouldn't spin. It felt kind of stiff, but I figured it was because it had been sitting without oil in it for a couple of years. Now I'm wondering if that's causing the slow spool-up? Any thoughts? My car really should be quicker than it is!
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